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/*
* $Id: db9.c,v 1.6 2000/06/25 10:57:50 vojtech Exp $
*
* Copyright (c) 1999 Vojtech Pavlik
*
* Based on the work of:
* Andree Borrmann Mats Sjövall
*
* Sponsored by SuSE
*/
/*
* Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/parport.h>
#include <linux/input.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
MODULE_LICENSE("GPL");
MODULE_PARM(db9, "2i");
MODULE_PARM(db9_2, "2i");
MODULE_PARM(db9_3, "2i");
#define DB9_MULTI_STICK 0x01
#define DB9_MULTI2_STICK 0x02
#define DB9_GENESIS_PAD 0x03
#define DB9_GENESIS5_PAD 0x05
#define DB9_GENESIS6_PAD 0x06
#define DB9_SATURN_PAD 0x07
#define DB9_MULTI_0802 0x08
#define DB9_MULTI_0802_2 0x09
#define DB9_CD32_PAD 0x0A
#define DB9_MAX_PAD 0x0B
#define DB9_UP 0x01
#define DB9_DOWN 0x02
#define DB9_LEFT 0x04
#define DB9_RIGHT 0x08
#define DB9_FIRE1 0x10
#define DB9_FIRE2 0x20
#define DB9_FIRE3 0x40
#define DB9_FIRE4 0x80
#define DB9_NORMAL 0x0a
#define DB9_NOSELECT 0x08
#define DB9_SATURN0 0x00
#define DB9_SATURN1 0x02
#define DB9_SATURN2 0x04
#define DB9_SATURN3 0x06
#define DB9_GENESIS6_DELAY 14
#define DB9_REFRESH_TIME HZ/100
static int db9[] __initdata = { -1, 0 };
static int db9_2[] __initdata = { -1, 0 };
static int db9_3[] __initdata = { -1, 0 };
struct db9 {
struct input_dev dev[2];
struct timer_list timer;
struct pardevice *pd;
int mode;
int used;
};
static struct db9 *db9_base[3];
static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 8, 1, 1, 7 };
static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn };
static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
"Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad" };
static void db9_timer(unsigned long private)
{
struct db9 *db9 = (void *) private;
struct parport *port = db9->pd->port;
struct input_dev *dev = db9->dev;
int data, i;
switch(db9->mode) {
case DB9_MULTI_0802_2:
data = parport_read_data(port) >> 3;
input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
case DB9_MULTI_0802:
data = parport_read_status(port) >> 3;
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
break;
case DB9_MULTI_STICK:
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
break;
case DB9_MULTI2_STICK:
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2);
break;
case DB9_GENESIS_PAD:
parport_write_control(port, DB9_NOSELECT);
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
data=parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
break;
case DB9_GENESIS5_PAD:
parport_write_control(port, DB9_NOSELECT);
data=parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
data=parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
break;
case DB9_GENESIS6_PAD:
parport_write_control(port, DB9_NOSELECT); /* 1 */
udelay(DB9_GENESIS6_DELAY);
data=parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
data=parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NOSELECT); /* 2 */
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NOSELECT); /* 3 */
udelay(DB9_GENESIS6_DELAY);
data=parport_read_data(port);
input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
input_report_key(dev, BTN_Z, ~data & DB9_DOWN);
input_report_key(dev, BTN_MODE, ~data & DB9_UP);
input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NOSELECT); /* 4 */
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NORMAL);
break;
case DB9_SATURN_PAD:
parport_write_control(port, DB9_SATURN0);
data = parport_read_data(port);
input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
input_report_key(dev, BTN_Z, ~data & DB9_DOWN);
input_report_key(dev, BTN_TL, ~data & DB9_UP);
input_report_key(dev, BTN_TR, ~data & DB9_RIGHT);
parport_write_control(port, DB9_SATURN2);
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
parport_write_control(port, DB9_NORMAL);
data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_LEFT);
input_report_key(dev, BTN_B, ~data & DB9_UP);
input_report_key(dev, BTN_C, ~data & DB9_DOWN);
input_report_key(dev, BTN_X, ~data & DB9_RIGHT);
break;
case DB9_CD32_PAD:
data=parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
parport_write_control(port, 0x0a);
for (i = 0; i < 7; i++) {
data = parport_read_data(port);
parport_write_control(port, 0x02);
parport_write_control(port, 0x0a);
input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
}
parport_write_control(port, 0x00);
break;
}
mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
}
static int db9_open(struct input_dev *dev)
{
struct db9 *db9 = dev->private;
struct parport *port = db9->pd->port;
if (!db9->used++) {
parport_claim(db9->pd);
parport_write_data(port, 0xff);
parport_data_reverse(port);
parport_write_control(port, DB9_NORMAL);
mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
}
return 0;
}
static void db9_close(struct input_dev *dev)
{
struct db9 *db9 = dev->private;
struct parport *port = db9->pd->port;
if (!--db9->used) {
del_timer(&db9->timer);
parport_write_control(port, 0x00);
parport_data_forward(port);
parport_release(db9->pd);
}
}
static struct db9 __init *db9_probe(int *config)
{
struct db9 *db9;
struct parport *pp;
int i, j;
if (config[0] < 0)
return NULL;
if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
printk(KERN_ERR "db9.c: bad config\n");
return NULL;
}
for (pp = parport_enumerate(); pp && (config[0] > 0); pp = pp->next)
config[0]--;
if (!pp) {
printk(KERN_ERR "db9.c: no such parport\n");
return NULL;
}
if (!(pp->modes & PARPORT_MODE_TRISTATE) && config[1] != DB9_MULTI_0802) {
printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
return NULL;
}
if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL)))
return NULL;
memset(db9, 0, sizeof(struct db9));
db9->mode = config[1];
init_timer(&db9->timer);
db9->timer.data = (long) db9;
db9->timer.function = db9_timer;
db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
if (!db9->pd) {
printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
kfree(db9);
return NULL;
}
for (i = 0; i < 1 + (db9->mode == DB9_MULTI_0802_2); i++) {
db9->dev[i].private = db9;
db9->dev[i].open = db9_open;
db9->dev[i].close = db9_close;
db9->dev[i].name = db9_name[db9->mode];
db9->dev[i].idbus = BUS_PARPORT;
db9->dev[i].idvendor = 0x0002;
db9->dev[i].idproduct = config[1];
db9->dev[i].idversion = 0x0100;
db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
db9->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
for (j = 0; j < db9_buttons[db9->mode]; j++)
set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
db9->dev[i].absmin[ABS_X] = -1; db9->dev[i].absmax[ABS_X] = 1;
db9->dev[i].absmin[ABS_Y] = -1; db9->dev[i].absmax[ABS_Y] = 1;
input_register_device(db9->dev + i);
printk(KERN_INFO "input%d: %s on %s\n",
db9->dev[i].number, db9_name[db9->mode], db9->pd->port->name);
}
return db9;
}
#ifndef MODULE
int __init db9_setup(char *str)
{
int i, ints[3];
get_options(str, ARRAY_SIZE(ints), ints);
for (i = 0; i <= ints[0] && i < 2; i++) db9[i] = ints[i + 1];
return 1;
}
int __init db9_setup_2(char *str)
{
int i, ints[3];
get_options(str, ARRAY_SIZE(ints), ints);
for (i = 0; i <= ints[0] && i < 2; i++) db9_2[i] = ints[i + 1];
return 1;
}
int __init db9_setup_3(char *str)
{
int i, ints[3];
get_options(str, ARRAY_SIZE(ints), ints);
for (i = 0; i <= ints[0] && i < 2; i++) db9_3[i] = ints[i + 1];
return 1;
}
__setup("db9=", db9_setup);
__setup("db9_2=", db9_setup_2);
__setup("db9_3=", db9_setup_3);
#endif
int __init db9_init(void)
{
db9_base[0] = db9_probe(db9);
db9_base[1] = db9_probe(db9_2);
db9_base[2] = db9_probe(db9_3);
if (db9_base[0] || db9_base[1] || db9_base[2])
return 0;
return -ENODEV;
}
void __exit db9_exit(void)
{
int i, j;
for (i = 0; i < 3; i++)
if (db9_base[i]) {
for (j = 0; j < 1 + (db9_base[i]->mode == DB9_MULTI_0802_2); j++)
input_unregister_device(db9_base[i]->dev + j);
parport_unregister_device(db9_base[i]->pd);
}
}
module_init(db9_init);
module_exit(db9_exit);
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